Ultraviolet (2000 A) galaxy counts: Comparison with predictions

Details Ultraviolet (2000 A) galaxy counts: Comparison with predictions Ultraviolet (2000 A) galaxy counts: Comparison with predictions

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...282....1a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 282, no. 1, p. 1-10

Astronomy and Astrophysics

Astronomy

16

Astronomical Models, Galactic Evolution, Galactic Radiation, Spectral Energy Distribution, Spiral Galaxies, Star Formation, Stellar Spectrophotometry, Ultraviolet Astronomy, Color-Magnitude Diagram, Mathematical Models, Prediction Analysis Techniques, Stellar Color, Stellar Luminosity

Scientific paper

A prediction of galaxy counts at 2000 A and m2000 - B color distributions is elaborated from published spectral energy distributions and evolution models of galaxies. The comparison of the predictions to the observations at 2000 A is used to derive constraints on the local density of star-forming galaxies and their recent evolution. The data indicate a larger contribution of moderately blue ultraviolet-emitting galaxies than usually assumed in model counts at visible wavelengths. This discrepancy can reflect an underestimate of the local density of the actively star-forming galaxies, as well as an underestimate of the spectrophotometric and maybe numeric evolution of these objects. Models which call upon a large contribution of very blue galaxies to explain the well known number excess in galaxy counts near B = 18, produce blue tails in the m2000 - B color distributions which are not observed in the data.

Affiliated with

Also associated with

No associations

Rating

Ultraviolet (2000 A) galaxy counts: Comparison with predictions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ultraviolet (2000 A) galaxy counts: Comparison with predictions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultraviolet (2000 A) galaxy counts: Comparison with predictions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1012643